Hi I have 2 roswell speakers on my v2 tower. My boat have 80 hours and one speaker doesn't work. Are these speakers supposed to be good quality?

I let the speakers on the boat during winter. The boat is in a portable garage non heated. Do you think that this could explain the reason why the speaker stopped to work? Do you remove your speakers during winter? I m in canada and the winter are very cold.

Are there other person who has problem with there roswell speaker?